Synonyms:
job, task, chore
Meaning: a specific piece of work required to be done as a duty or for a specific fee; "estimates of the city's loss on that job ranged as high as a million dollars"; "the job of repairing the engine took several hours"; "the endless task of classifying the samples"; "the farmer's morning chores"
Usage examples
Their biggest chore, however, was to see to it that Adams got sleep, food, and exercise.